Scientist I, Bioassay

Terrestrial Bio; Woburn (MA); Hybrid; USD 109,000 - 123,000; Full time

Job summary

Terrestrial Bio, Inc. is seeking a Scientist I, Bioassay to join our team in Allston, MA and Woburn, MA.

You will develop and optimize cell-based functional assays to support preclinical research and GMP lot release testing, ensuring biological performance of drug products. The role requires experience with aseptic mammalian cell culture, ELISA and data interpretation, and offers on-site/hybrid work with relocation planned to a new facility later in 2026.

Qualifications

• PhD with postdoc or Master’s with 4+ years industry experience in life sciences.
• Significant experience with aseptic mammalian cell culture.
• Strong understanding of experimental controls and data interpretation.
• Experience with functional assays (e.g., ELISA) and protein quantification.
• Experience with animal models is preferred.
• Excellent organizational skills and collaborative mindset.

Responsibilities

• Develop and optimize cell-based functional assays to support preclinical research and GMP lot release testing.
• Execute routine functional testing ensuring biological integrity under GLP/GMP standards.
• Analyze data using suitable statistical methods and communicate results to the team.
• Maintain accurate laboratory records, generate data summaries and compile reports.
• Contribute to study design, protocols, and report writing; manage priorities independently.

Skills

Aseptic culture

ELISA

Data interpretation

Statistical analysis

Communication skills

Education

PhD in Molecular and Cell Biology

Master’s in Life Sciences

Tools

Cell culture

Bioassay methods

Job description

Scientist I, Bioassay

Terrestrial Bio

Location: Allston, MA and Woburn, MA

About Terrestrial Bio, Inc.

Terrestrial is transforming the delivery of next-generation therapies, starting with GLP-1.

Terrestrial’s proprietary Tacterra™ microarray patch (MAP) and applicator platform consists of a patch resembling an adhesive bandage, which is applied with a preloaded applicator and removed after a few minutes. Once applied, each patch delivers bioactive tips into the skin, which dissolve quickly into the body, rapidly releasing their therapeutic payload. Designed for self-administration, the temperature-stable Tacterra™ platform enables precise, controlled delivery of a wide range of therapeutics without medical sharps or refrigeration.

Terrestrial has generated strong clinical and in‑vivo proof of concept across multiple molecules. For more information, visit www.terrestrialbio.com.

Why this role

We are seeking a talented, collaborative, and highly motivated individual to join our core team of preclinical scientists and engineers contributing to the advancement of novel drug delivery modalities. This role is designed for a versatile researcher. You will play a key role in bioassay development to support preclinical research and GMP lot release testing, including the execution of functional assays to ensure biological performance of drug product. This is a unique opportunity to be part of an emerging company bringing innovative microneedle therapeutic delivery technology to the global market.

What you’ll do

• Develop and optimize cell-based functional assays to support preclinical research and GMP lot release testing for targets that may include proteins, antibodies, peptides, and RNA
• Execute routine functional testing to ensure biological integrity of drug product following GLP/GMP standards as needed, adhering to good documentation practices and ensuring compliant lab operations and workflows
• Analyze the data using suitable statistical methods and deliver interpretation for communication of results to the team
• Maintain accurate laboratory records, generate data summaries and compile reports to support regulatory filings
• Contribute collaboratively to study design, protocols, and report writing; independently navigate your own schedule to complete priority tasks and communicate findings to the team.

How you’ll impact

• Contribute to translational studies that directly advance IND (Investigational New Drug) filings
• Challenging, technically fulfilling role at the intersection of engineering and biological efficacy
• This position offers tangible career growth opportunities

Who you are

• Recent PhD with post doc in a relevant area or Master’s degree with 4+ years relevant industry experience
• Significant experience with aseptic mammalian cell culture is required
• Solid understanding of experimental controls and data interpretation is required
• PhD or Master degree in Molecular and Cell Biology, Biochemistry, or a related life sciences field
• Experience with functional assays (e.g. ELISA) and analytical methods (e.g, protein quantification) is highly preferred
• Experience with animal models is preferred
• Strong organizational skills, attention to detail, and initiative appropriate for a fast-paced environment
• Strong verbal and communication skills with a commitment to working collaboratively within an interdisciplinary team

Compensation: The anticipated base salary range for this position is $109,000 – $123,000. Actual compensation will be determined based on a variety of factors including experience, qualifications, and internal equity.

Onsite expectations: The majority of our roles at Terrestrial are either onsite or hybrid, which allows us to meet both business and team needs. Candidates applying must be willing to be onsite 4-5 days per week.

Location: Woburn, MA until relocation to a new, custom facility in Allston MA planned for Q4 of 2026.

At Terrestrial, we’re bringing together exceptional talent to drive our product development forward. We value collaboration, curiosity, and a dynamic work environment. We aim to recruit, employ, train, compensate and promote regardless of race, religion, color, national origin, sex, gender identity or expression, sexual orientation, disability, age, or veteran status.